Wordpress website for a pay-to bid site

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
I'm using Wordpress to realize a pay-to-bid site. the website is www.vincilo.net
I have already created all the pages so the website is almost done, but missing some main functionality as:

1) to add a user registration with:


once the user is logged in, on the top of the page it needs to show "Welcome Name" and "Crediti: 0".

2) in each page of the "lista", the user needs to be able to buy a spot on the table to take part in to the bid. After the payment, the name of the user needs to be shown in the table with his credits. ==> After that, the user will be able to buy the credits that will be updated in the field in the table. The credits will be not updated in the field at the top of the page but only in the table.

3) once the list is completed (max numbers of partecipants), the countdown (already in the website) needs to start. At the end of the countdown the name of the winner (the person who has more credits with respect to the others) should appear in "green" color with a written "(Vincitore!)"

4) The non-winner users can use again their credits in other list hence the credits will appear in the field at the top of the page e.g. "Crediti: 100" and they need to be used in other list. Hence the user should be able to use his credits in different list.
The cost of the partecipation for list (for a non-winner user) will be doubled in creditis for the partecipation in a different list according to this easy scheme:

20 euro = 40 credits
30 euro = 60 credits
40 euro = 80 credits
...and so on.

That's all.

Please see this message.
The answers that will be taken into account will be only that with the answer to this question:
"What is the sum of 2 + 3 ?"

Skills required:
Database Administration, HTML, MySQL, PHP, Wordpress
About the employer:
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